A small, not-for-profit psychiatric hospital and residential treatment center founded in 1919, the Austen Riggs Center is internationally known for its respectful and effective work with patients with significant psychiatric illness. Consistently ranked a "Best Hospital" by U.S. News & World Report, Riggs is the only longer-term psychiatric hospital in the country that provides quality care based on intensive, individual psychodynamic psychotherapy in an open setting. Integral to the Center's mission, Riggs' Erikson Institute for Education and Research is committed to furthering the study of psychodynamic thought and treatment.

Currently, Dr. Rosen is an Associate Professor and Director of Residency Training, Department of Psychiatry at Oregon Health Sciences University, Portland, Oregon. Before joining OHSU in 1999, he served in many administrative and teaching positions during the 15 years he was at Menninger Clinic, then located in Topeka, Kansas, including Director of Psychiatry; Medical Director, MenningerCare Systems; Director of the Menninger Leadership Center and President of the Active Medical Staff. He was also the Founding Director of the Professionals in Crisis Program, Director of Athletic Services, and Director of Addiction Services.

Dr. Rosen sits on the National Advisory Council for the National Health and Human Services Department Substance Abuse and Mental Health Services Administration (SAMHSA). He is also a consultant for the Oregon Impaired Physicians Program and the Oregon Attorney Assistance Program, and is Advisor to the Physicians Health Committee of Legacy Health Systems.

He is active in the American Association of Directors of Psychiatry Residency Training, serving on its executive committee as treasurer. He is also a faculty member of the Oregon Psychoanalytic Institute.